/*!	 valuenode_boneweightpair.cpp
**	 Implementation of the "BoneWeightPair" valuenode conversion.
**
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**	Copyright (c) 2008 Chris Moore
**	Copyright (c) 2008 Carlos López
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifdef USING_PCH
#	include "pch.h"
#else
#ifdef HAVE_CONFIG_H
#	include <config.h>
#endif

#include "valuenode_boneweightpair.h"
#include "valuenode_bone.h"
#include "valuenode_const.h"
#include <synfig/canvas.h>
#include <synfig/general.h>
#include <synfig/localization.h>
#include <synfig/valuenode_registry.h>
#include <synfig/boneweightpair.h>

#endif

using namespace std;
using namespace etl;
using namespace synfig;

REGISTER_VALUENODE(ValueNode_BoneWeightPair, RELEASE_VERSION_0_62_00, "boneweightpair", "Bone Weight Pair")

ValueNode_BoneWeightPair::ValueNode_BoneWeightPair(const ValueBase &value, Canvas::LooseHandle canvas):
    LinkableValueNode(value.get_type())
{
    if (value.get_type() == type_bone_weight_pair) {
        BoneWeightPair bone_weight_pair(value.get(BoneWeightPair()));
        ValueBase bone(bone_weight_pair.get_bone());
        ValueNode_Bone::Handle bone_value_node;
        bone_value_node = ValueNode_Bone::create(bone, canvas);
        set_link("bone", ValueNode_Const::create(bone_value_node, canvas));
        set_link("weight", ValueNode_Const::create(Real(bone_weight_pair.get_weight())));

        if (getenv("SYNFIG_DEBUG_SET_PARENT_CANVAS")) {
            printf("%s:%d set parent canvas for bwp to %lx\n", __FILE__, __LINE__, uintptr_t(canvas.get()));
        }

        set_parent_canvas(canvas);

        ValueNode_Bone::show_bone_map(canvas, __FILE__, __LINE__, "after making new boneweightpair");
    } else {
        throw Exception::BadType(value.get_type().description.local_name);
    }
}

LinkableValueNode*
ValueNode_BoneWeightPair::create_new()const
{
    return new ValueNode_BoneWeightPair(get_type());
}

ValueNode_BoneWeightPair*
ValueNode_BoneWeightPair::create(const ValueBase &x, Canvas::LooseHandle canvas)
{
    return new ValueNode_BoneWeightPair(x, canvas);
}

ValueNode_BoneWeightPair::~ValueNode_BoneWeightPair()
{
    unlink_all();
}

ValueBase
ValueNode_BoneWeightPair::operator()(Time t)const
{
    if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS")) {
        printf("%s:%d operator()\n", __FILE__, __LINE__);
    }

    ValueNode_Bone::Handle bone_node((*bone_)(t).get(ValueNode_Bone::Handle()));
    Bone bone((*bone_node)(t).get(Bone()));
    Real weight((*weight_)(t).get(Real()));
    return BoneWeightPair(bone, weight);
}

bool
ValueNode_BoneWeightPair::check_type(Type &type)
{
    return type == type_bone_weight_pair;
}

bool
ValueNode_BoneWeightPair::set_link_vfunc(int i, ValueNode::Handle value)
{
    assert(i >= 0 && i < link_count());

    switch (i) {
    case 0:
        CHECK_TYPE_AND_SET_VALUE(bone_,   type_bone_valuenode);

    case 1:
        CHECK_TYPE_AND_SET_VALUE(weight_, type_real);
    }

    return false;
}

ValueNode::LooseHandle
ValueNode_BoneWeightPair::get_link_vfunc(int i)const
{
    assert(i >= 0 && i < link_count());

    switch (i) {
    case 0:
        return bone_;

    case 1:
        return weight_;
    }

    return 0;
}

LinkableValueNode::Vocab
ValueNode_BoneWeightPair::get_children_vocab_vfunc() const
{
    LinkableValueNode::Vocab ret;

    ret.push_back(ParamDesc(ValueBase(), "bone")
                  .set_local_name(_("Bone"))
                  .set_description(_("Bone used to make influence"))
                 );

    ret.push_back(ParamDesc(ValueBase(), "weight")
                  .set_local_name(_("weight"))
                  .set_description(_("The relative value of influence of the bone"))
                 );

    return ret;
}